Illuminance plots of ge8943

(as computed by ies2tab from that IES photometry file)

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for a single luminaire). The right plot is for a single luminaire, unrotated.

illuminance scale

Values below the scale are illuminance / 1 lx. This is for (unrealistic) “unit” case that luminaires would have lamps producing 1 klm only, would be point-like and just 1 m over the terrain.

ies2tab text output:

   
       
# IESNA91
# [TEST] GE 8943
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMS)               
# [LAMP] MET 175-250 / MER 175-250     
# [OTHER] Distribution: VTV       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: VERTICAL LAMP                 SPIDER MTG                    
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92121502
# [MORE] Reflector: 232655-03                       Refractor: CLEAR FLAT GLASS              
# TILT=NONE
# Bulbs: 1,   1000 lm each
# Number of measured angles:  20 vertical,  36 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   1.500  (   0.000 )
# Ballast factor: 1,  Input power:    1 W


# Source file: ies/ge8943.ies
# Luminaire flux =   754 lm,
#                   75.4 % of the bulb flux
# between 75 and 90:  2.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  22.0 cd/1000lm ,  0.6 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   206 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   153 cd/1000lm,
# maximum spec. lum. intensity   260 cd/1000lm

# The following table gives luminous intensities which would be produced
# using a hypothetic bulb giving a luminous flux of 1000 lm (i.e., cd/klm):

#  H:   0.0   5.0  15.0  25.0  35.0  45.0  52.5  55.0  57.5  62.5  65.0  67.5  72.5  75.0  77.5  82.5  85.0  87.5  92.5  95.0  97.5 102.5 105.0 107.5 112.5 115.0 117.5 122.5 125.0 127.5 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0  35.0
  5.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0  38.0
 15.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0
 25.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0
 35.0   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115   115
 45.0   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212
 55.0   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260   260
 60.0   219   219   219   219   219   219   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   233   219   219   219   219   219   219
 62.5   198   198   198   198   198   198   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   206   198   198   198   198   198   198
 65.0   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178
 67.5   144   144   144   144   144   144   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   153   144   144   144   144   144   144
 70.0   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110
 72.5  76.0  76.0  76.0  76.0  76.0  76.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  70.0  76.0  76.0  76.0  76.0  76.0  76.0
 75.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0  43.0
 77.5  32.0  32.0  32.0  32.0  32.0  32.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  23.0  32.0  32.0  32.0  32.0  32.0  32.0
 80.0  22.0  22.0  22.0  22.0  22.0  22.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  11.0  22.0  22.0  22.0  22.0  22.0  22.0
 82.5  11.0  11.0  11.0  11.0  11.0  11.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0  11.0  11.0  11.0  11.0  11.0  11.0
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0